Gasp abe mazza



2 Sheets-Sheet 1.

(No Model.)

G. MAZZA, Injector and Condenser.

INVBNTOR mn/f WIT ATTORNEYS.

2 sheetssheet 2.

(No Moden) G MAZZA. Injector and Condenser.

No. 233,532. ,y Patented oct. 19, |380.

WITN'ESSES e f ATTORNEYS.

NFETERS. PHOTO-UYHOGRAPHER. WASHINGTON. D C,

rAres UNITE GASPARE MAZZA,

Armar OF TURIN, ITALY.

INJECTOR AND CONDENSER.

SPECIFICATION forming part of Letters Patent No. 233,532, dated October 19, 1880. Application filed May 3,1580. (No model.) Patentetlin Italy February 13, 1880.

To all whom -it may concern:

Be itA known that I, GASPARE MAZZA, of Turin, Italy, have invented a new and Improved Injector with Condenser, of which the following is a specification.

The invention consists in combininga boilerpipe, cones, and connected eccentrics having different throws with a feed-water pipe and a steam-inlet pipe having` a cock, as hereinafter described.

In the accompanying drawings, Figure 1 is a longitudinal sectional elevation of my improved injector and condenser on line me, Fig. 2. Fig. 2 is a horizontal sectional elevation of the same on line y y, Fig. l. Fig.3 is a longitudinal sectional elevation of the same on the line z z, Figs. 1 and 2 and Fig.4is a crosssectional elevation of a modication of the improved injeetor and condenser.

Similar letters of reference indicate corresponding parts.

B is the pipe through which the feed-water passes. C is the pipe for admitting the steam, and for this purpose is connected with the steam-boiler. This pipe C corresponds to the steam-inlet of the ordinary injector.

O is the pipe which conducts the exhauststeam from the cylinders. I? is a large cock which establishes a communication between the waste-steam pipe O and the condensinginjector. D is a pipe which conducts the mixture of steam and water to the boiler, as in all ordinary injectors.

In order to work the apparatus as an ordinary injector, the cock P is closed, and steam is admitted into the central tube. The amount of water introduced is regulated by the eccentric F, which is worked by arod, M, or by a lever with ahandle. By turning the eccentric F the cone or nozzle Eis moved, and thus the port admitting the water is regulated.

K is a second eccentric, by means ot' which the distance between the cones Eand J is regulated. It is advantageous to unite the rods of the eccentricsF and K by a link, N, so as to work them together. It is advisable that when the apparatus is startedthe cones E and J should be at their greatest distance apart,

and that it be reduced to its minimum when the injector is working. To obtain this result the eccentric K has a longer throw than the eccentric F. By turning the eccentric F for the purpose ot' regulating the water the cone E moves more slowly than the cone J, andthe distance between the two cones increases, while the port-hole for the admission ot' the water is heilig restricted. Thediti'erent stroke of the eccentrics F and K is made for attaining this object, which is particularly favorable for rather tepid feed-water. Still these eccentrics are not indispensable for the proper working of the injector, for the said injector can work with one eccentric, F, by making onlyT the cone E movable, and by tixing the cone J. It may also be made to work, both eccentrics H and F being suppressed, while both cones E and J are fixed or stationary. Naturally it will also work if both cones E and J are movable, but with an equal motion, which is effected by attaching them to thelink N, both eccentrics F and K having the same stroke, or by xin g them to pieces which hold them internally in a fixed manner.

The injector works as a condenser if the large cock P is opened while the machine is atwork. The waste steam passes through the pipe O in the cone H, and is condensed by its contact with the water. The condensed mixture meets the central steam-jet coming from the boiler through the pipe O, and is driven by this steam into the boiler. Therefore, the injector as above described can work as an ordinary injector or as an injector and a condenser at the same time.

The apparatus works both easier and better when the injector acts also as a condenser, because of a certain amount of vacuum formed by the condensation of the waste steam in contact with the water.

The speed of the waste-steam jet is considerable, and it is communicated to the feed-water, thus aiding in imparting to the same the requisite speed for being driven into the boiler.

Instead ot' a single cone, H', two or three concentric cones may be arranged, as is shown in Fig. 4, so as to bring the steam little by little in contact with the water. The arrangement shown in Figs. 1, 2, and 3 may be better on account of being simple. This condensing-injector is made to act also by suction if a needle is added to the central steam-cone.

My apparatus is applicable to all kinds of machines which Work with condensa/cion, and a steaminlet pipe, C, and an exhausbpipe, O, may have, beside, the ordinary outlet adapted having cock P, of the pipe D, leading to the 1o Ito be closed, another provided with a springboiler, the cones E J, and the connected ecvzdve. centrics F K, having di'erent throws, as and Having thus described lnyinvention,1' claim for the purpose specified. as new and desire to secure by Letters Pat- Witnesses: GASPARE MAZZA. ent- FELICE BAZETTA,

The combination, with a feed-water pipe, B, Sig. LORENZO RAIMONDO. 

